1 fire Alarm Control Panels MS-2 & MS-4. MS-2E & MS-4E. Instruction Manual Document 51512. 8/6/2014. P/N 51512:G3. Rev: G3. ECN 14-523. fire Alarm & Emergency Communication System Limitations While a life safety system may lower insurance rates, it is not a substitute for life and property insurance! An automatic fire Alarm system typically made up of smoke (caused by escaping gas, improper storage of flammable materi- detectors, heat detectors, manual pull stations, audible warning als, etc.). devices, and a fire Alarm Control panel (FACP) with remote notifi- Heat detectors do not sense particles of combustion and Alarm cation capability can provide early warning of a developing fire .
2 Only when heat on their sensors increases at a predetermined Such a system, however, does not assure protection against rate or reaches a predetermined level. Rate-of-rise heat detec- property damage or loss of life resulting from a fire . tors may be subject to reduced sensitivity over time. For this An emergency communication system typically made up of reason, the rate-of-rise feature of each detector should be tested an automatic fire Alarm system (as described above) and a life at least once per year by a qualified fire protection specialist. safety communication system that may include an autonomous Heat detectors are designed to protect property, not life.
3 Control unit (ACU), local operating console (LOC), voice commu- IMPORTANT! Smoke detectors must be installed in the same nication, and other various interoperable communication meth- room as the Control panel and in rooms used by the system for ods can broadcast a mass notification message. Such a the connection of Alarm transmission wiring, communications, system, however, does not assure protection against property signaling, and/or power. If detectors are not so located, a devel- damage or loss of life resulting from a fire or life safety event. oping fire may damage the Alarm system, compromising its abil- The Manufacturer recommends that smoke and/or heat ity to report a fire .
4 Detectors be located throughout a protected premises following Audible warning devices such as bells, horns, strobes, the recommendations of the current edition of the National fire speakers and displays may not alert people if these devices Protection Association Standard 72 (NFPA 72), manufacturer's are located on the other side of closed or partly open doors or recommendations, State and local codes, and the are located on another floor of a building. Any warning device recommendations contained in the Guide for Proper Use of may fail to alert people with a disability or those who have System Smoke Detectors, which is made available at no charge recently consumed drugs, alcohol, or medication.
5 Please note to all installing dealers. This document can be found at http:// that: A study by the Federal An emergency communication system may take priority over Emergency Management Agency (an agency of the United a fire Alarm system in the event of a life safety emergency. States government) indicated that smoke detectors may not go off in as many as 35% of all fires. While fire Alarm systems are Voice messaging systems must be designed to meet intelligi- designed to provide early warning against fire , they do not bility requirements as defined by NFPA, local codes, and guarantee warning or protection against fire .
6 A fire Alarm system Authorities Having Jurisdiction (AHJ). may not provide timely or adequate warning, or simply may not Language and instructional requirements must be clearly dis- function, for a variety of reasons: seminated on any local displays. Smoke detectors may not sense fire where smoke cannot Strobes can, under certain circumstances, cause seizures in reach the detectors such as in chimneys, in or behind walls, on people with conditions such as epilepsy. roofs, or on the other side of closed doors. Smoke detectors Studies have shown that certain people, even when they hear also may not sense a fire on another level or floor of a building.
7 A fire Alarm signal, do not respond to or comprehend the A second-floor detector, for example, may not sense a first-floor meaning of the signal. Audible devices, such as horns and or basement fire . bells, can have different tonal patterns and frequencies. It is Particles of combustion or smoke from a developing fire the property owner's responsibility to conduct fire drills and may not reach the sensing chambers of smoke detectors other training exercises to make people aware of fire Alarm because: signals and instruct them on the proper reaction to Alarm sig- Barriers such as closed or partially closed doors, walls, chim- nals.
8 Neys, even wet or humid areas may inhibit particle or smoke In rare instances, the sounding of a warning device can cause flow. temporary or permanent hearing loss. Smoke particles may become cold, stratify, and not reach A life safety system will not operate without any electrical the ceiling or upper walls where detectors are located. power. If AC power fails, the system will operate from standby Smoke particles may be blown away from detectors by air batteries only for a specified time and only if the batteries have outlets, such as air conditioning vents.
9 Been properly maintained and replaced regularly. Smoke particles may be drawn into air returns before reach- Equipment used in the system may not be technically compat- ing the detector. ible with the Control panel. It is essential to use only equipment listed for service with your Control panel. The amount of smoke present may be insufficient to Alarm smoke detectors. Smoke detectors are designed to Alarm at var- Telephone lines needed to transmit Alarm signals from a prem- ious levels of smoke density. If such density levels are not cre- ises to a central monitoring station may be out of service or tem- ated by a developing fire at the location of detectors, the porarily disabled.
10 For added protection against telephone line detectors will not go into Alarm . failure, backup radio transmission systems are recommended. Smoke detectors, even when working properly, have sensing The most common cause of life safety system malfunction is limitations. Detectors that have photoelectronic sensing cham- inadequate maintenance. To keep the entire life safety system in bers tend to detect smoldering fires better than flaming fires, excellent working order, ongoing maintenance is required per the which have little visible smoke. Detectors that have ionizing-type manufacturer's recommendations, and UL and NFPA stan- sensing chambers tend to detect fast-flaming fires better than dards.